ARM-Cortex®-M4F+M0 MCU, 32 bit, 1.71-3.6 V, 256 KB,VFQFPN-68

STM32WB55xx,
Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5 and 802.15.4 radio solution

Features
- Includes ST state-of-the-art patented technology
- Radio
- 2.4 GHz
- RF transceiver supporting Bluetooth® 5 specification, IEEE 802.15.4-2011 PHY and MAC, supporting Thread and ZigBee® 3.0
- RX Sensitivity: -96 dBm (Bluetooth® Low Energy at 1 Mbps), -100 dBm (802.15.4)
- Programmable output power up to +6 dBm with 1 dB steps
- Integrated balun to reduce BOM
- Support for 2 Mbps
- Dedicated Arm® 32-bit Cortex® M0 + CPU for real-time Radio layer
- Accurate RSSI to enable power control
- Suitable for systems requiring compliance with radio frequency regulations ETSI EN
300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-T66
- Support for external PA
- Ultra-low-power platform
- 1.71 V to 3.6 V power supply
- - 40 °C to 85 / 105 °C temperature ranges
- 13 nA shutdown mode
- 600 nA Standby mode + RTC + 32 KB RAM
- 2.1 µA Stop mode + RTC + 256 KB RAM
- Active-mode MCU: < 53 µA / MHz when RF and SMPS On
- Radio: Rx 4.5 mA / Tx at 0 dBm 5.2 mA
- Core: Arm® 32-bit Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 64 MHz, MPU, 80 DMIPS and DSP instructions
- Supply and reset management
- High efficiency embedded SMPS step-down converter with intelligent bypass mode
- Ultra-safe, low-power BOR (brownout reset) with five selectable thresholds
- Ultra-low-power POR/PDR
- Programmable voltage detector (PVD)
- VBAT mode with RTC and backup registers
- Clock sources
- 32 MHz crystal oscillator with integrated trimming capacitors (Radio and CPU clock)
- 32 kHz crystal oscillator for RTC (LSE)
- Internal low-power 32 kHz (±5%) RC (LSI1)
- Internal low-power 32 kHz (stability ±500 ppm) RC (LSI2)
- Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25% accuracy)
- High speed internal 16 MHz factory trimmed RC (±1%)
- 2x PLL for system clock, USB, SAI and ADC
- Memories
- Up to 1 MB Flash memory with sector protection (PCROP) against R/W operations, enabling authentic Bluetooth® Low Energy and 802.15.4 SW stack
- Up to 256 KB SRAM, including 64 KB with hardware parity check
- 20x32-bit backup register
- Boot loader supporting, USART, SPI, I2C and USB interfaces
- OTA (Over the air) Bluetooth® Low Energy and 802.15.4 update
- Quad SPI memory interface with XIP
- Rich analog peripherals (down to 1.62 V)
- 12-bit ADC 4.26Msps, up to 16-bit with hardware oversampling, 200 µA/Msps
- 2x ultra-low-power comparator
- Accurate 2.5 V or 2.048 V reference voltage buffered output
- System peripherals
- Inter processor communication controller (IPCC) for communication with Bluetooth® Low Energy and 802.15.4
- HW semaphores for resources sharing between CPUs
- 2x DMA controllers (7x channels each) supporting ADC, SPI, I2C, USART, QSPI, SAI, AES, Timers
- 1x USART (ISO 7816, IrDA, SPI Master, Modbus and Smartcard mode)
- 1x LPUART (low power)
- 2x SPI 32 Mbit/s
- 2x I2C (SMBus/PMBus)
- 1x SAI (dual channel high quality audio)
- 1x USB 2.0 FS device, crystal-less, BCD and LPM
- Touch sensing controller, up to 18 sensors
- LCD 8x40 with step-up converter
- 1x 16-bit, four channels advanced timer
- 2x 16-bits, two channels timer
- 1x 32-bits, four channels timer
- 2x 16-bits ultra-low-power timer
- 1x independent Systick
- 1x independent watchdog
- 1x window watchdog
- Security and ID
- Secure firmware installation (SFI) for Bluetooth® Low Energy and 802.15.4 SW stack
- 3x hardware encryption AES maximum 256-bit for the application, the Bluetooth® Low Energy and IEEE802.15.4
- Customer key storage / key manager services
- HW public key authority (PKA)
- Cryptographic algorithms: RSA, Diffie-Helman, ECC over GF(p)
- True random number generator (RNG)
- Sector protection against R/W operation (PCROP)
- CRC calculation unit
- 96-bit unique ID
- 64-bit unique ID. Possibility to derive 802.15.5 64-bit and Bluetooth® Low Energy 48-bit EUI
- Up to 72 fast I/Os, 70 of them 5 V-tolerant
- Development support
- Serial wire debug (SWD), JTAG for the Application processor
- Application cross trigger with input and output
- Embedded Trace Macrocell™ for application
- All packages are ECOPACK®2 compliant